An Aerial Ropeway This increasingly popular form of transporting goods suggests an up-to-date mechanical toy which will provide a great deal of amusement. The first necessity is a pair of stout wooden uprights, suitably weighted so that they will not pull over. Wood one inch square in section and about six inches high will be suitable, if each upright is …

A jump seat, officially known as an auxiliary crew station, is a seat in the cockpit for individuals not operating the aircraft. The term is also used to refer to crew seats in the cabin, which are occupied by a flight attendant or other cabin crew during take-off and landing. These cabin jump seats are typically located next to or …

The most ambitious project since the Apollo missions to land a man on the moon, the International Space Station (ISS) is the next step in human exploration of the solar system. It is a joint venture between 16 nations, and the largest scientific cooperative programme in history. All power for the space station is generated by large arrays of solar …

To understand the inert pair effect, we need to understand the periodic table. There are some inherent properties of elements in the table. The inert pair effect is nothing but the extra stability concept. Generally p-block elements belonging to 3A, 4A, 5A, 6A, etc. show variable valency. For example, Sn element of group 4A shows +4 and +2 oxidation state. …

It is only when we stop to think that we realize the importance of land plants to us. We eat them in our cereals and vegetables, we make use of them for fibres like cotton, we depend on them for many drugs such as penicillin. But even when we eat meat, we must remember that the animals which produce the …

Ice and Boiling Water Take an ordinary test tube and fill it nearly to the top with cold water. Into the tube drop a small piece of ice about the size of a marble or cherry. We want it to stay at the bottom of the water, but being lighter than water it floats. To overcome this put a ring …

If you stood on the shore looking across the sea to the horizon (the line appearing to separate earth from sky), you might be able to see about two and half miles. But the higher you stood the further you would be able to see. As the earth is curved, the horizon would appear farther away with energy increase in …

The Great Rift Valley is the vast geographic depression that runs from the Jordan River Valley in Syria, South-western Asia to Mozambique in eastern Africa. The valley is approximately 6000 km, and its width varies from a few miles to more than one hundred miles. Its elevation varies from 1300 feet below sea level to 6000 feet above sea level. …

The golden angle separates the florets of a sunflower. It is an approximation, since three golden arcs add up to slightly more than enough to make a circle. One of the old leaves overlaps and is pushed out in a radial line. This makes space in the inner system for a new leaf to form. New leaves move into the …

God Particle is the nickname given to Higgs boson particle, so far a hypothetical subatomic particle believed to impart mass to the atom and, eventually, to all matter in the universe. The particle has come to the limelight in the wake of the ongoing Big Bang experiment in the Large Hadron Collider at Geneva, which expects to verify the very …